Drinking cup



FIG. 1 is a top, front right side perspective view of the drinking cup showing the new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top, front right side perspective view of the drinking cup of FIG. 1 with a detachable top cover being removed therefrom.

The broken lines in the drawings are included for the purpose of illustration and form no part of the claimed design. 

The ornamental design for a drinking cup, as shown and described. 